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From David Hall <d...@cs.berkeley.edu>
Subject Re: mllib vector templates
Date Mon, 05 May 2014 22:06:05 GMT
Lbfgs and other optimizers would not work immediately, as they require
vector spaces over double. Otherwise it should work.
On May 5, 2014 3:03 PM, "DB Tsai" <dbtsai@stanford.edu> wrote:

> Breeze could take any type (Int, Long, Double, and Float) in the matrix
> template.
>
>
> Sincerely,
>
> DB Tsai
> -------------------------------------------------------
> My Blog: https://www.dbtsai.com
> LinkedIn: https://www.linkedin.com/in/dbtsai
>
>
> On Mon, May 5, 2014 at 2:56 PM, Debasish Das <debasish.das83@gmail.com
> >wrote:
>
> > Is this a breeze issue or breeze can take templates on float / double ?
> >
> > If breeze can take templates then it is a minor fix for Vectors.scala
> right
> > ?
> >
> > Thanks.
> > Deb
> >
> >
> > On Mon, May 5, 2014 at 2:45 PM, DB Tsai <dbtsai@stanford.edu> wrote:
> >
> > > +1  Would be nice that we can use different type in Vector.
> > >
> > >
> > > Sincerely,
> > >
> > > DB Tsai
> > > -------------------------------------------------------
> > > My Blog: https://www.dbtsai.com
> > > LinkedIn: https://www.linkedin.com/in/dbtsai
> > >
> > >
> > > On Mon, May 5, 2014 at 2:41 PM, Debasish Das <debasish.das83@gmail.com
> > > >wrote:
> > >
> > > > Hi,
> > > >
> > > > Why mllib vector is using double as default ?
> > > >
> > > > /**
> > > >
> > > >  * Represents a numeric vector, whose index type is Int and value
> type
> > is
> > > > Double.
> > > >
> > > >  */
> > > >
> > > > trait Vector extends Serializable {
> > > >
> > > >
> > > >   /**
> > > >
> > > >    * Size of the vector.
> > > >
> > > >    */
> > > >
> > > >   def size: Int
> > > >
> > > >
> > > >   /**
> > > >
> > > >    * Converts the instance to a double array.
> > > >
> > > >    */
> > > >
> > > >   def toArray: Array[Double]
> > > >
> > > > Don't we need a template on float/double ? This will give us memory
> > > > savings...
> > > >
> > > > Thanks.
> > > >
> > > > Deb
> > > >
> > >
> >
>

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